Add linuxbridge plugin support

* Add quantum_plugin_linuxbridge custom type
  Custom type used to configure linuxbridge plugin
  in linuxbridge_conf.ini

* Add quantum::agents::linuxbridge class
  Setups linuxbridge quantum agent.

* Add quantum::plugins::linuxbridge class
  Setups linuxbridge plugin for quantum server.

Change-Id: I864745d6b5acd8203cf32c371fc2967e3566ae6c
Merge "Add linuxbridge plugin support"
Remove old file from glance

This file seems to have been copied from Glance. Removing it.

Change-Id: I18549e305f5ba8c4c09cdf833452cd466e216864
Merge "Remove old file from glance"
Adds support for managing the metadata agent service and config file.

Fixes bug: #1175720

Change-Id: I90e3246b2684fb73e59dab0042b1de97774baa96
Cleans up the client.pp manifest

Change-Id: I7d1a7b2bcffa70f173340962d7e671e804232cd6
Merge "Cleans up the client.pp manifest"
Changes to the init manifest

This patch makes a few changes to the init manifest:

  * Adds a documentation header
  * Adds a root_helper parameter
  * Removes the rootwrap_conf option
  * Removes the rootwrap.conf file
  * Formatting fixes

Change-Id: I8c15a7227296aecd94174fce9df8c7067d673e3d
Cleans up the keystone manifest

This patch makes the following changes to the keystone auth manifest:

  * Fixes the tenant variable in the Keystone_user_role notification
  * Modifies the tests to account for the above point

Change-Id: I94716b165750f0a89112028608b78ff6712c54de
Merge "Changes to the init manifest"
Merge "Cleans up the keystone manifest"
Merge "Adds support for managing the metadata agent service and config file."